@Jeremy: It's me, too. I had a typo, a "5. " in front of Volker's name, now corrected to a "4. ". Our number 5 was Fourat Zouari (TriTUX.com, Tunis, Tunisia) with "Using Partitioning for Data Warehousing", which along the others in positions 5 through 10 were introduced in http://blogs.mysql.com/kaj/2008/11/22/mysql-51-use-case-competition-positions-5-to-10/